/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.bff.gaia.unified.runners.fnexecution;



import com.bff.gaia.unified.vendor.grpc.v1p13p1.io.grpc.BindableService;



/** An interface sharing common behavior with services used during execution of user Fns. */

public interface FnService extends AutoCloseable, BindableService {

  /**

   * {@inheritDoc}.

   *

   * <p>There should be no more calls to any service method by the time a call to {@link #close()}

   * begins. Specifically, this means that a {@link

   * com.bff.gaia.unified.vendor.grpc.v1p13p1.io.grpc.Server} that this service is bound to should have

   * completed a call to the {@link com.bff.gaia.unified.vendor.grpc.v1p13p1.io.grpc.Server#shutdown()}

   * method, and all future incoming calls will be rejected.

   */

  @Override

  void close() throws Exception;

}